Carbon Woofer Enjoy High Fidelity Sound Each woofer unit is designed with a carbon diaphragm to ensure excellent clarity. AI Sound Pro Adaptive Audio for Everything You Watch AI Sound Pro automatically analyses content and instantly optimises the audio settings for what’s playing. Catch every detail with crystal clear dialogue or more punchy powerful action, depending on the genre. Wireless Subwoofer Powerful bass – easy to install Feel the beat with the powerful LG Sound Bar SL4Y wireless subwoofer. Pumping out an extra 200 watts, it sounds good and is convenient to install in your room. Connectivity Multiple connection options Easily play music via Bluetooth®, or conveniently connect and play using optical or HDMI cables. Bluetooth® Streaming Stream Smart for Quality Sound Stream music directly from your smartphone to the sound bar via Bluetooth®. Exceptional sound for your music collection is now within reach. TV Sound Sync Sync seamlessly with your LG TV This LG Sound Bar can be simply connected to your LG TV via Bluetooth® or optical cable. Your complete TV audio experience is ready in no time.